Our brief taste of summer is over and cold air is invading the state this morning. Snow is already falling over Sioux Falls and will likely accumulate over portions of Iowa during the next two days. It remains to be seen how far south the snow will get, but suffice it to say that accumulating May snowfalls are rare in Iowa. The featured top chart presents the last date in the springtime each year on which at least one inch of snowfall was reported. The bottom chart shows the maximum temperature reported between 1 January and the date of the last snowfall. Des Moines hit 86 yesterday, so if it does snow this would be the second warmest temperature on record prior to the last snow.

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Tags:   snow